Event Notification Report for June 12, 2015

HIGH PRESSURE COOLANT INJECTION DECLARED INOPERABLE

"On June 12, 2015 at 1030 CDT, the Browns Ferry Nuclear Plant Unit 3 High Pressure Coolant Injection (HPCI) system was declared inoperable due to the time to drain the Turbine Exhaust Drain Pot after running the system for periodic testing. The concern is that the turbine may be partially flooded after shutting down and a subsequent restart could cause a water hammer event, possibly damaging the system. This issue was previously analyzed by Engineering as acceptable, but the time to drain the pot after the latest test indicates more water in the exhaust than the maximum amount used in the analysis.

"Technical Specification 3.5.1, ECCS Operating, Condition C, was entered as a result of the inoperable HPCI system. This constitutes an unplanned HPCI system inoperability and requires an 8-hour NRC notification in accordance with 10 CFR 50.72(b)(3)(v)(D) due to the failure of a single train system affecting accident mitigation, and a 60 day written report in accordance with 10 CFR 50.73(a)(2)(v)

"The NRC Resident Inspector has been notified."

The Technical Specification Action statement allows 14 days to restore the HPCI system to operable status.

* * * RETRACTION FROM MATTHEW SLOUKA TO DANIEL MILLS AT 1623 EDT ON 9/10/15 * * *

"Browns Ferry Nuclear Plant is retracting the 8-hour NRC notification (EN# 51153) made on June 12, 2015 at 1030 CDT.

"The notification on June 12, 2015, reported a condition where the HPCI system was declared inoperable due to the time to drain the Turbine Exhaust Drain Pot after running the system for periodic testing. The concern was that the turbine may be partially flooded which could cause water hammer and damage the HPCI system.

"Subsequent evaluation concluded that the HPCI system under the identified flooded turbine conditions will not produce a transient that exceeds design values, therefore, HPCI system operability was maintained and no reportable condition existed during this time.

"The NRC Resident Inspector has been notified of this retraction."

Notified R2DO (Shaeffer).

AGREEMENT STATE REPORT - STOLEN MOISTURE/DENSITY GAUGE

The following information was received via E-mail:

"On June 12, 2015, a portable gauge was being stored in a locked box in the back of a truck which was locked in one of the user's garages. An ex-girlfriend, who had a copy of the truck keys, broke into the user's house and stole the truck with the gauge still in the back. The truck was reported stolen to the RSO on the morning of June 13, 2015. The RSO then made a police report and contacted the Agency's [Arizona Radiation Regulatory Agency] duty officer. The RSO stated that someone spotted the truck in Mesa, Arizona on the night of June 13, 2015. The gauge is a Troxler Model 3400 series, Serial Number 5310, containing 7.4 millicuries of Cesium-137 and 40 millicuries of Americium-241.

"The truck is a white, 2007 GMC Sierra crew cab with Arizona license plate number: 415ZGV.

"The investigation into this event is ongoing.

"The US NRC, Maricopa County sheriff's office, Arizona DPS [Department of Public Safety], California, New Mexico, Utah, Nevada, and Arizona governor's office are being notified of this event."

Arizona First Notice Number: 15-009

* * * UPDATE ON 07/06/15 AT 1448 EDT FROM BRIAN GORETZKI TO JEFF HERRERA * * *

The following update was provided by the Arizona Radiation Regulatory Agency via email:

"On July 5, 2015, City of Mesa police identified the stolen truck in the parking lot of Mountain View Medical Center. The portable gauge was still with the vehicle and it was relocated to the licensee's office. The licensee will perform a leak test prior to the gauge being used."

Notified the R4DO (Haire), ILTAB (Johnson), NMSS Events (via email) and CNSNS (MEXICO via email).

THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL

Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

LOSS OF TONE ALERT RADIO SYSTEM

"At 1027 [EDT] on June 12, 2015, with the James A. FitzPatrick (JAF) Nuclear Power Plant operating at 100% reactor power, Oswego County Emergency Management Center notified JAF that the Tone Alert Radio System had been out of service since 0924 [EDT].

"This impacts the ability to readily notify a portion of the Emergency Planning Zone (EPZ) Population for the JAF Nuclear Power Plant. This failure meets NRC 8 hour reporting criterion 10 CFR 50.72(b)(3)(xiii).

"The county alert sirens which also function as part of the Public Prompt Notification System remain operable.

"The loss of the Tone Alert Radio System constitutes a significant loss of emergency off-site communications ability. Compensatory measures have been verified to be available should the Prompt Notification System be needed. This consists of utilizing the hyper reach system which is a reverse 911 feature available from the county 911 center. Local law enforcement personnel are also available for 'route alerting' of the affected areas of the EPZ.

"The event has been entered into the corrective action program and the [NRC] Resident Inspector has been briefed."

National Weather Service is investigating the failures.


* * * UPDATE FROM BENJAMIN EGNEW TO DONALD NORWOOD AT 1436 EDT ON 6/16/2015 * * *

"The Tone Alert System was restored to service on 6/16/15 at 1230 EDT."

The licensee notified the NRC Resident Inspector.

Notified the R1DO (Bickett).